woo-hoo

or woo hoo or whoo-hoo

[ woo-hoo ]

interjection

, Informal.

1. (used to express excitement, delight, etc.):

   Woo-hoo! It's Friday!

Word History and Origins

Origin of woo-hoo¹

First recorded in 1650–60, for an earlier sense

Example Sentences

And she had no idea that the way she acted on television—occasionally shouting out her signature rallying cry “Woo-hoo!”

From The Daily Beast